Gas transport properties of siloxane polyurethanes
β Scribed by Mario Pegoraro; Febo Severini; Raffaele Gallo; Luciano Zanderighi
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 677 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0021-8995
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A series of polyurethanes with different siloxane contents were synthesized, which were based on 4,4Π-methylene diphenyl diisocyanate (MDI), poly(tetramethylene oxide) (PTMO), aminoethylaminopropyl poly(dimethyl siloxane) (AEAPS), and butanediol (BD). The chemical compositions, structures, and bulk
Two series of polyurethanes were prepared to investigate the effect of comacrodiol structure on properties and morphology of polyurethanes based on the siloxane macrodiol, β£,-bis(6-hydroxyethoxypropyl) polydimethylsiloxane (PDMS). All polyurethanes contained a 40 wt % hard segment derived from 4,4Π-